title: Early invasive carcinoma of the cervix (3 to 5 mm invasion): risk factors and prognosis. A Gynecologic Oncology Group study.
abstract: OBJECTIVE
  Our purpose was to evaluate the risk factors and prognosis in patients with stage IA squamous cell carcinoma of the cervix and 3 to 5 mm of invasion.
  
  
  METHODS
  From 1981 to 1984 the Gynecologic Oncology Group conducted a prospective clinicopathologic study of patients with stage I carcinoma of the cervix. A selective study group that was previously defined and reported included patients with squamous cell carcinoma of the cervix who were treated with radical hysterectomy and pelvic lymphadenectomy and who had disease confined to the uterus, with or without microscopically positive lymph nodes.
  
  
  RESULTS
  One hundred eighty-eight patients had invasion of 3, 4, or 5 mm as determined by central pathology review. Patients who satisfied the 3 to 5 mm invasion definition of the current stage IA2 classification of the International Federation of Gynecology and Obstetrics (1995) are the subject of this report.
  
  
  CONCLUSIONS
  Patients with stage IA2 carcinoma of the cervix who have 3 to 5 mm of invasion present on conization with no invasion in the hysterectomy specimen are at very low risk for lymph node metastases, recurrences, or death caused by cancer.
authors.affiliation: Department of Obstetrics and Gynecology, Medical University of South Carolina, USA.
authors.forename: W T
authors.initials: WT
authors.lastname: Creasman
authors.forename: R J
authors.initials: RJ
authors.lastname: Zaino
authors.forename: F J
authors.initials: FJ
authors.lastname: Major
authors.forename: P J
authors.initials: PJ
authors.lastname: DiSaia
authors.forename: K D
authors.initials: KD
authors.lastname: Hatch
authors.forename: H D
authors.initials: HD
authors.lastname: Homesley
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000453:epidemiology* / Q000473:pathology* / Q000601:surgery; D002584:Cervix Uteri / Q000473:pathology / Q000601:surgery; D019092:Conization; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D007044:Hysterectomy; D015994:Incidence; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000473:pathology / Q000601:surgery; D008207:Lymphatic Metastasis; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011379:Prognosis; D012189:Retrospective Studies; D012307:Risk Factors; D002583:Uterine Cervical Neoplasms / Q000453:epidemiology* / Q000473:pathology* / Q000601:surgery